Police are concerned for the welfare of an elderly man who has gone missing in Cambridge. Robin Haines, 84, was reporting missing to police on Friday night (3 May) after he failed to return to his home in Little Shelford. It is thought that Robin used his mobility scooter, which is white and has a roof covering, to travel into Cambridge city centre on Friday morning and was expected home by lunchtime. Robin is of slim build, about 6ft tall, with short, light grey hair and was last seen wearing a brown knitted shirt, blue quilted sleeveless jacket, dark navy trousers and brown shoes. Det Insp M…